Could you please recommend a good reliable UPC unit.
- 1 or 2U (1U preferably)
- allows to plug two servers to it (2 amp total)
- allows to change its batteries without interrupting the normal work of the servers
- If there is a power failure, the unit must be able to safely shutdown the servers after certain number of seconds that I can specify.
I need this for DB servers to prevent corruptions after power failure. I am also not sure how these units work. Do they "simulate" ctrl-alt-del or they actually connect to the servers and then issue a command to shut them down?